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Description

HAX CMS helps manage microsite universe with PHP or NodeJs backends. A stored cross-site scripting (XSS) vulnerability exists in versions prior to 26.0.0 due to improper sanitization of `<iframe>` elements. The application allows `javascript:` URIs in the `src` attribute, which are executed when a malicious page is viewed. This enables attackers to execute arbitrary JavaScript in the context of the victim’s browser and access sensitive data exposed to client-side scripts. Version 26.0.0 fixes the issue.

PUBLISHED Reserved 2026-05-13 | Published 2026-06-05 | Updated 2026-06-05 | Assigner GitHub_M




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

< 26.0.0
affected

< 26.0.0
affected

< 26.0.0
affected

References

github.com/...issues/security/advisories/GHSA-jh3h-rpxg-fr36

cve.org (CVE-2026-46396)

nvd.nist.gov (CVE-2026-46396)

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